Nt1210 Unit 3 - Assignment 1: Ipv6 Addressing

1. Research the following organizations and explain their involvement with the Internet public IP addresses
a. American Registry for Internet Numbers (ARIN)
ARIN is one of the five regional internet registries (RIR) that handle IP address allocation. ARIN handles the following regions, United States, Canada, parts of the Caribbean and Antarctica.

b. Internet Assigned Numbers Authority (IANA)
IANA is a department of ICANN, which specifically handles the IP Address allocation to the five regional internet registries.

c. Asia-Pacific Network Information Center (APNIC)
APNIC handles the same role as ARIN but for different regions. It handles the Asia Pacific which includes Asia, Australia, New Zealand, and more.

2. Approximately how many IPv4 addresses are possible?
The IPv4 address space is 32 bits.
2^32 = 4,294,967,296

3. Approximately how many IPv6 addresses are possible?
The IPv6 address space is 128 bits.
2^128 = 340,282,366,920,938,463,463,374,607,431,768,211,456

4. Why do you think the world is running out of IPv4 addresses?
The IPv4 address only allows only around 4.3 Billion addresses. There are currently more than 7 billion people in the world. While everyone doesn’t have a connection, there are more devices than people and servers to serve content.

5. How long do you think it will take before the IPv4 addresses are completely exhausted?
All IPv4 addresses have been allocated to companies. While they have not been assigned to customers they will soon. IPv4 sharing between different customers will be common.

6. Since IPv6 is the long-term solution for this issue, why do you think we are still using and assigning IPv4 addresses on the Internet?
I believe there are two major reasons. 1. Companies don’t like to change things unless absolutely necessary. 2. IPv4 and IPv6 are not compatible. Requiring levels of translation at the network level in